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                                <h1 id="&#x4E8B;&#x4EF6;&#x6A21;&#x5757;&#x7684;&#x6CE8;&#x5165;&#x6A21;&#x5F0F;">&#x4E8B;&#x4EF6;&#x6A21;&#x5757;&#x7684;&#x6CE8;&#x5165;&#x6A21;&#x5F0F;</h1><p>React &#x4E3A;&#x4E86;&#x8DE8;&#x5E73;&#x53F0;&#xFF0C;&#x5BF9;&#x4E8E;&#x4E8B;&#x4EF6;&#x4F53;&#x7CFB;&#x7684;&#x4EE3;&#x7801;&#x505A;&#x51FA;&#x4E86;&#x4E00;&#x4E9B;&#x59A5;&#x534F;&#xFF0C;&#x91C7;&#x7528;&#x52A8;&#x6001;&#x6CE8;&#x5165;&#x7684;&#x65B9;&#x5F0F;&#x8BA9;&#x4E0D;&#x540C;&#x7684;&#x5E73;&#x53F0;&#x5BF9;&#x4E8B;&#x4EF6;&#x6838;&#x5FC3;&#x6A21;&#x5757;&#x8FDB;&#x884C;&#x63D2;&#x4EF6;&#x6CE8;&#x5165;&#x3002;&#x6211;&#x4EEC;&#x5148;&#x6765;&#x770B;<code>ReactDOM</code>&#x7684;&#x5165;&#x53E3;&#x6587;&#x4EF6;&#xFF0C;&#x91CC;&#x9762;&#x6709;&#x8FD9;&#x4E48;&#x4E00;&#x53E5;&#x4EE3;&#x7801;&#xFF1A;<code>import &apos;./ReactDOMClientInjection&apos;;</code>&#xFF0C;&#x8FD9;&#x5C31;&#x662F;&#x6CE8;&#x5165;&#x7684;&#x5F00;&#x59CB;&#xFF0C;&#x8FD9;&#x4E2A; js &#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p><pre><code class="lang-js"><span class="hljs-keyword">import</span> * <span class="hljs-keyword">as</span> EventPluginHub <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;events/EventPluginHub&apos;</span>
<span class="hljs-keyword">import</span> * <span class="hljs-keyword">as</span> EventPluginUtils <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;events/EventPluginUtils&apos;</span>

<span class="hljs-keyword">import</span> {
  getFiberCurrentPropsFromNode,
  getInstanceFromNode,
  getNodeFromInstance,
} <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;./ReactDOMComponentTree&apos;</span>
<span class="hljs-keyword">import</span> BeforeInputEventPlugin <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/BeforeInputEventPlugin&apos;</span>
<span class="hljs-keyword">import</span> ChangeEventPlugin <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/ChangeEventPlugin&apos;</span>
<span class="hljs-keyword">import</span> DOMEventPluginOrder <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/DOMEventPluginOrder&apos;</span>
<span class="hljs-keyword">import</span> EnterLeaveEventPlugin <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/EnterLeaveEventPlugin&apos;</span>
<span class="hljs-keyword">import</span> SelectEventPlugin <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/SelectEventPlugin&apos;</span>
<span class="hljs-keyword">import</span> SimpleEventPlugin <span class="hljs-keyword">from</span> <span class="hljs-string">&apos;../events/SimpleEventPlugin&apos;</span>

EventPluginHub.injection.injectEventPluginOrder(DOMEventPluginOrder)
EventPluginUtils.setComponentTree(
  getFiberCurrentPropsFromNode,
  getInstanceFromNode,
  getNodeFromInstance,
)

EventPluginHub.injection.injectEventPluginsByName({
  SimpleEventPlugin: SimpleEventPlugin,
  EnterLeaveEventPlugin: EnterLeaveEventPlugin,
  ChangeEventPlugin: ChangeEventPlugin,
  SelectEventPlugin: SelectEventPlugin,
  BeforeInputEventPlugin: BeforeInputEventPlugin,
})</code></pre>
<p>&#x901A;&#x8FC7;&#x8FD9;&#x4E24;&#x4E2A;&#x65B9;&#x6CD5;&#x5411;&#x4E8B;&#x4EF6;&#x7CFB;&#x7EDF;&#x6CE8;&#x5165;&#x4E86;&#x5E73;&#x53F0;&#x76F8;&#x5173;&#x7684;&#x4E8B;&#x4EF6;&#x4EE3;&#x7801;&#xFF0C;&#x540C;&#x65F6;&#x786E;&#x5B9A;&#x4E8B;&#x4EF6;&#x7684;&#x8C03;&#x7528;&#x987A;&#x5E8F;&#x3002;</p><h1 id="plugin">plugin</h1><p>&#x6211;&#x4EEC;&#x5148;&#x6765;&#x770B;&#x4E00;&#x4E0B;&#x4E00;&#x4E2A;<code>plugin</code>&#x5E94;&#x8BE5;&#x957F;&#x548B;&#x6837;&#xFF1A;</p><pre><code class="lang-js"><span class="hljs-keyword">const</span> ChangeEventPlugin = {
  eventTypes: {
    change: {
      phasedRegistrationNames: {
        bubbled: <span class="hljs-string">&apos;onChange&apos;</span>,
        captured: <span class="hljs-string">&apos;onChangeCapture&apos;</span>,
      },
      isInteractive: boolean, <span class="hljs-comment">// &#x6807;&#x5FD7;&#x662F;&#x5426;&#x9AD8;&#x4F18;&#x5148;&#x7EA7;&#x53CD;&#x9988;</span>
      registrationName: string,
      dependencies: [
        TOP_BLUR,
        TOP_CHANGE,
        TOP_CLICK,
        TOP_FOCUS,
        TOP_INPUT,
        TOP_KEY_DOWN,
        TOP_KEY_UP,
        TOP_SELECTION_CHANGE,
      ],
    },
  },

  _isInputEventSupported: isInputEventSupported,

  extractEvents: <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">
    topLevelType,
    targetInst,
    nativeEvent,
    nativeEventTarget,
  </span>) </span>{
    <span class="hljs-comment">// &#x521B;&#x5EFA;event&#x5BF9;&#x8C61;&#x5E76;return</span>
  },
}</code></pre>
<p><code>eventTypes</code>&#x662F;&#x4EE5;&#x5177;&#x4F53;&#x4E8B;&#x4EF6;&#x4E3A;<code>key</code>&#x7684; map &#x5BF9;&#x8C61;&#xFF0C;&#x5176;&#x4E2D;&#x6BCF;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;<code>phasedRegistrationNames</code>&#x662F;&#x6307;&#x5B9A;<code>props</code>&#x7684;&#x540D;&#x5B57;&#xFF0C;<code>dependencies</code>&#x662F;&#x5982;&#x679C;&#x9700;&#x8981;&#x7ED1;&#x5B9A;<code>change</code>&#x4E8B;&#x4EF6;&#x9700;&#x8981;&#x540C;&#x65F6;&#x7ED1;&#x5B9A;&#x54EA;&#x4E9B;&#x4E8B;&#x4EF6;</p><p><code>extractEvents</code>&#x662F;&#x4E00;&#x4E2A;&#x65B9;&#x6CD5;&#xFF0C;&#x7528;&#x6765;&#x6839;&#x636E;&#x5177;&#x4F53;&#x771F;&#x5B9E;&#x89E6;&#x53D1;&#x7684;&#x4E8B;&#x4EF6;&#x7C7B;&#x578B;&#x7B49;&#x53C2;&#x6570;&#xFF0C;&#x8FD4;&#x56DE;&#x5BF9;&#x5E94;&#x7684;&#x4E8B;&#x4EF6;&#x5BF9;&#x8C61;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x8FD4;&#x56DE;<code>null</code>&#x8868;&#x793A;&#x5F53;&#x524D;&#x4E8B;&#x4EF6;&#x8DDF;&#x8FD9;&#x4E2A;&#x63D2;&#x4EF6;&#x6CA1;&#x6709;&#x5173;&#x7CFB;&#x3002;</p><h1 id="&#x6CE8;&#x518C;&#x63D2;&#x4EF6;">&#x6CE8;&#x518C;&#x63D2;&#x4EF6;</h1><table>
<thead>
<tr><th> &#x53D8;&#x91CF;&#x540D; </th>
<th> &#x4F5C;&#x7528; </th>
</tr></thead><tbody>
<tr><td style="text-align:left"> <code>eventPluginOrder</code> </td>
<td style="text-align:left"> &#x8BB0;&#x5F55;&#x63D2;&#x4EF6;&#x7684;&#x8C03;&#x7528;&#x987A;&#x5E8F; </td>
</tr><tr><td style="text-align:left"> <code>namesToPlugins</code> </td>
<td style="text-align:left"> &#x4EE5;&#x63D2;&#x4EF6;&#x540D;&#x4E3A;<code>key</code>&#x7684;&#x63D2;&#x4EF6; map </td>
</tr><tr><td style="text-align:left"> <code>plugins</code> </td>
<td style="text-align:left"> &#x6309;&#x7167;<code>eventPluginOrder</code>&#x987A;&#x5E8F;&#x5B58;&#x50A8;&#x7684;&#x63D2;&#x4EF6;&#x6A21;&#x5757;&#x6570;&#x7EC4; </td>
</tr><tr><td style="text-align:left"> <code>eventNameDispatchConfigs</code> </td>
<td style="text-align:left"> &#x6309;&#x7167;&#x6BCF;&#x4E2A;&#x63D2;&#x4EF6;&#x4E2D;&#x7684;<code>eventTypes</code>&#x4E2D;&#x7684;&#x6BCF;&#x4E00;&#x9879;&#x4E3A;<code>key</code>&#xFF0C;&#x5176;&#x5BF9;&#x5E94;&#x7684;&#x5BF9;&#x8C61;&#x4E3A;<code>value</code>&#x7684;&#x5BF9;&#x8C61; </td>
</tr><tr><td style="text-align:left"> <code>registrationNameModules</code> </td>
<td style="text-align:left"> &#x5B58;&#x50A8;&#x6709;<code>phasedRegistrationNames</code>&#x6216;&#x8005;<code>registrationName</code>&#x7684;&#x63D2;&#x4EF6;&#x7684;&#x4E8B;&#x4EF6;&#x5BF9;&#x5E94;&#x7684;&#x6A21;&#x5757;</td>
</tr></tbody></table>

<p>&#x9996;&#x5148;&#x8C03;&#x7528;<code>injectEventPluginOrder</code>&#xFF0C;&#x8BBE;&#x7F6E;<code>eventPluginOrder</code></p><p>&#x7136;&#x540E;&#x8C03;&#x7528;<code>injectEventPluginsByName</code>&#xFF0C;&#x628A;&#x6240;&#x6709;&#x63D2;&#x4EF6;&#x52A0;&#x5165;&#x5230;<code>namesToPlugins</code>&#x5BF9;&#x8C61;&#x4E2D;&#xFF0C;&#x5E76;&#x4EE5;&#x63D2;&#x4EF6;&#x540D;&#x4E3A;<code>key</code></p><p>&#x7136;&#x540E;&#x8C03;&#x7528;<code>recomputePluginOrdering</code>&#x628A;&#x6240;&#x6709;&#x63D2;&#x4EF6;&#x5B89;&#x987A;&#x5E8F;&#x63D2;&#x5165;&#x5230;<code>plugins</code>&#x6570;&#x7EC4;&#x4E2D;&#xFF0C;&#x5E76;&#x5BF9;&#x6BCF;&#x4E2A;&#x63D2;&#x4EF6;&#x4E2D;&#x7684;<code>eventTypes</code>&#x4E2D;&#x7684;&#x6BCF;&#x4E2A;&#x4E8B;&#x4EF6;&#x7C7B;&#x578B;&#x8C03;&#x7528;<code>publishEventForPlugin</code>&#xFF0C;&#x8BBE;&#x7F6E;<code>eventNameDispatchConfigs</code>&#x5BF9;&#x8C61;&#xFF0C;&#x4EE5;&#x4E8B;&#x4EF6;&#x540D;&#x4E3A;<code>key</code>&#x5B58;&#x50A8;<code>dispatchConfig</code>&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x4E0A;&#x9762;&#x63D2;&#x4EF6;&#x4E2D;&#x7684;<code>eventTypes.change</code>&#x5BF9;&#x5E94;&#x7684;&#x5BF9;&#x8C61;</p><p>&#x7136;&#x540E;&#x8FD8;&#x9700;&#x8981;&#x5BF9;&#x6BCF;&#x4E00;&#x4E2A;<code>phasedRegistrationNames</code>&#x91CC;&#x9762;&#x7684;&#x9879;&#x6267;&#x884C;<code>publishRegistrationName</code>&#xFF0C;&#x8BBE;&#x7F6E;<code>registrationNameModules</code>&#xFF0C;&#x4EE5;&#x4E8B;&#x4EF6;&#x540D;&#x4E3A;<code>key</code>&#x5B58;&#x50A8;&#x6A21;&#x5757;&#xFF0C;&#x540C;&#x65F6;&#x8BBE;&#x7F6E;<code>registrationNameDependencies</code>&#xFF0C;&#x4EE5;&#x4E8B;&#x4EF6;&#x540D;&#x4E3A;<code>key</code>&#x5B58;&#x50A8;&#x4E8B;&#x4EF6;&#x7684;<code>dependencies</code></p><p><code>registrationNameModules</code>&#x5728;&#x66F4;&#x65B0; DOM &#x8282;&#x70B9;&#x7684;&#x65F6;&#x5019;&#x4F1A;&#x88AB;&#x7528;&#x5230;&#xFF0C;<code>registrationNameDependencies</code>&#x5728;&#x7ED1;&#x5B9A;&#x4E8B;&#x4EF6;&#x7684;&#x4F7F;&#x7528;&#x4F1A;&#x88AB;&#x7528;&#x5230;&#x3002;</p><p>&#x6574;&#x4E2A;&#x6CE8;&#x518C;&#x8FC7;&#x7A0B;&#x5C31;&#x662F;&#x4E3A;&#x4E86;&#x521D;&#x59CB;&#x5316;&#x8BBE;&#x7F6E;&#x8FD9;&#x4E9B;&#x53D8;&#x91CF;&#xFF0C;&#x8FD9;&#x4E9B;&#x53D8;&#x91CF;&#x5728;&#x540E;&#x7EED;&#x7684; DOM &#x64CD;&#x4F5C;&#x4E2D;&#x4F1A;&#x626E;&#x6F14;&#x6BD4;&#x8F83;&#x91CD;&#x8981;&#x7684;&#x89D2;&#x8272;&#x3002;</p><h3 id="&#x7ED3;&#x6784;">&#x7ED3;&#x6784;</h3><h5 id="eventnamedispatchconfigs">eventNameDispatchConfigs</h5><pre><code class="lang-js">{
  change: ChangePlugin.eventTypes.change,
  <span class="hljs-comment">// ...other plugins</span>
}</code></pre>
<h5 id="registrationnamemodules">registrationNameModules</h5><pre><code class="lang-js">{
  onChange: ChangePlugin,
  onChangeCapture: ChangePlugin
}</code></pre>
<h5 id="registrationnamedependencies">registrationNameDependencies</h5><pre><code class="lang-js">{
  onChange: ChangePlugin.eventTypes.change.dependencies,
  onChangeCapture: ChangePlugin.eventTypes.change.dependencies
}</code></pre>

                                
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